You've done well my son.
You price for what you think is fair, and to make a living, remember it's a business, not a part time cash in hand effort, or a hobby, and certainly not a charity. Keep up the good start
You will never ceased to be amazed at people's reactions, never ever let that put you off. Many out there will only want to pay pennies for your services, others actually live in the 21st century.
Darran